A group of unicorns is called a blessing.
304
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Sloths take two weeks to digest their food.
243
A scorpion can hold its breath for up to 6 days.
19
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10